Exhibition stand



FIG. 1 is a front side view looking down of an exhibition stand showing my new design;

FIG. 2 is a side view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a front side view looking down on the exhibition stand in a partially open position; and,

FIG. 6 is a front view of the exhibition stand in a partially open position of FIG. 5.

The broken lines in the figures illustrate unclaimed portions of the design. 

The ornamental design for an exhibition stand, as shown and described. 